Справочник Пользователя для Carrier 38YRA
WIRING DIAGRAM NOTES:
1. Underlined letter on dual terminal indicates its usage.
Outdoor Temperature Sensor must be attached in all dual fuel installations.
Jumper wire between O/W2 and L thermostst terminals MUST be present.
2. Y1 and O connections to 2-stage furnaces MAY NOT EXIST, or may be only a wire rather than a screw terminal.
3. Corporate thermostat model numbers begin with TSTAT_______.
4. Wiring must conform to NEC or local code.
5. To stage the electric resistance heat, consult outdoor thermostat installation instructions.
1. Underlined letter on dual terminal indicates its usage.
Outdoor Temperature Sensor must be attached in all dual fuel installations.
Jumper wire between O/W2 and L thermostst terminals MUST be present.
2. Y1 and O connections to 2-stage furnaces MAY NOT EXIST, or may be only a wire rather than a screw terminal.
3. Corporate thermostat model numbers begin with TSTAT_______.
4. Wiring must conform to NEC or local code.
5. To stage the electric resistance heat, consult outdoor thermostat installation instructions.
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Fig. 9—Typical 24-v Circuit Connections (continued)
A95279
FAN COIL
Y
W
C
R
24 VAC HOT
24 VAC COM
HEAT STAGE 2
COOL/HEAT
STAGE 1
STAGE 1
INDOOR FAN
NON-CORPORATE
NON-PROGRAMMABLE
THERMOSTAT
MODEL HP
HEAT
PUMP
RVS COOLING
EMERGENCY
HEAT
HEAT
E
W3
G
R
FK4B
R
W2
Y
Y/Y2
G
W2
C
C
O
O
O
Y1
E
L
A95280
FAN COIL
Y
W
G
R
24 VAC HOT
24 VAC COM
HEAT STAGE 2
COOL/HEAT
STAGE 1
STAGE 1
INDOOR FAN
RVS COOLING
EMERGENCY
HEAT
HEAT
NON-CORPORATE
NON-PROGRAMMABLE
THERMOSTAT
MODEL HP
HEAT
PUMP
E
C
R
G
W2
O
Y
O
W2
R
C
C
FA, FB, FC,
FD, FF
FD, FF
Copyright 1995 CARRIER Corp. • 7310 W. Morris St. • Indianapolis, IN 46231
38yra2si
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 1
4
Tab
5a 5a
PC 101
Catalog No. 533-890
Printed in U.S.A.
Form 38YRA-2SI
Pg 8
8-95
Replaces: 38YRA-1SI